There's multiple simultaneous narratives: the industry-wide one of slashing well-paid tech talent under the guise of AI productivity boosts, and what's actually going in at each company.
Cloudflare is an outlier because the company doesn't actually make money at present; their past three annual statements show net losses in the tens to hundreds of millions of dollars. Not hemorrhaging cash per se (their cash reserves alone could cover ~9 more years of losses), but still enough to warrant some cutbacks - and AI is the current scapegoat, thus they finger AI and throw folks out the door.
Coinbase's story is different: they're making good money, but their industry is inherently volatile. Again, recent volatility in the crypto markets related to...things...is dragging down long-term prospects for currencies, while ongoing trades are broadly just insiders doing insider things or exiting their positions for liquidity. Still, their share price is down 27% over 5 years and 18% YTD, so they also need to pump their share price so the executives get paid; layoffs are consistently rewarded by the shareholders, thus they axe part of their workforce for the bump and fingerpoint to AI.
Never take what a company says at face value, and always check their balance sheets. What Cloudflare did sucks but could be warranted to some degree; what Coinbase did has no justification whatsoever beyond naked greed.